NETWORK GROUP, s.r.o. was founded in 1995 as a company focused on the distribution of metallic and fiber optic cabling systems. In the year 2000, company expanded its activities to the PCB assembly processes. In 2010,the company established a R&D department focused to the research and development of special fiber optic components. Several R&D projects were opened for the development of the advanced industrial fiber sensing elements and interrogators.The most important part of the technological department in NETWORK GROUP is the processing unit for the fabrication of Fiber Bragg Gratings (FBG), which are mainly used in sensing systems, but also in some other areas where the optical signal filtering is needed, for example in the field of telecommunication.